Scara Robot Manipulator Manual

Setup & Operation 4. Setting of End Effectors
Eccentric Quantity and the Inertia Setting
CAUTION
■
The eccentric quantity of load (weight of the end effector and work piece) must be
150 mm or less. The G3 series Manipulators are not designed to work with
eccentric quantity exceeding 150 mm.
Always set the eccentric quantity parameter according to the eccentric quantity.
Setting a value that is smaller than the actual eccentric quantity may cause
errors, excessive shock, insufficient function of the Manipulator, and/or shorten
the life cycle of parts/mechanisms.
The acceptable eccentric quantity of load in G3 series is 0 mm at the default rating and
150 mm at the maximum. When the eccentric quantity of load exceeds the rating, change
the setting of eccentric quantity parameter of Inertia command. After the setting is
changed, the maximum acceleration/deceleration speed of the Manipulator at PTP motion
corresponding to the “eccentric quantity” is set automatically.
Position of load’s center of gravity
Rotation center
Eccentric quantity (150 mm or less)
Eccentric Quantity
Eccentric quantity of load on the shaft
The eccentric quantity of load (weight of the end effector and work piece) on the shaft can
be set by “eccentric quantity” parameter of Inertia command.
EPSON
RC+
Enter a value into the [Eccentricity:] text box on the [Inertia] panel ([Tools] - [Robot
Manager]). (You may also execute the Inertia command from the [Command Window].)
Automatic acceleration/deceleration setting by Inertia (eccentric quantity)
* The percentage in the graph is
based on the acceleration /
deceleration at rated eccentricity
(0 mm) as 100%.
120
100
80
60
40
20
0 50 100 150 (mm)
Eccentricity setting
60
40
20
(%)
100
G3 Rev.1 43